package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@RequestMapping("/user")
@Slf4j
public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate<String,String> redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
          //获取手机号
        String phone = user.getPhone();
        if(StringUtils.isNotEmpty(phone)){
            //生成四位随机验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code={}",code);

            //调用阿里云提供的短信服务api完成发送短信
            //SMSUtils.sendMessage("瑞吉外卖","",phone,code);

            //需要将生成的验证码保存到session
            // session.setAttribute(phone,code);
            //将生成的验证码保存到redis,设置过期时间
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
             return  R.success("手机验证码发送短信成功");

        }
        return R.error("短信发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map,HttpSession session){
        log.info(map.toString());
        //获取登录界面的手机号
        String phone = map.get("phone").toString();
        //获取登录界面的验证码
        String code = map.get("code").toString();
//          //从session中获取保存的验证码
//        Object codeSession = session.getAttribute(phone);
        //从redis中获取缓存的验证码
        Object codeSession=redisTemplate.opsForValue().get(phone);
        //进行验证码的对比(页面提交过来的验证码和session中保存的验证码)
           //如果能够对比成功,则说明登录成功
         if(codeSession!=null&&codeSession.equals(code)){
               //登录成功的话,判断是否为新用户,
             LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();
             wrapper.eq(User::getPhone,phone);
             User user = userService.getOne(wrapper);
             if (user==null){
                  //如果没有查到,则为新用户,然后保存
                  user = new User();
                 user.setPhone(phone);
                 user.setStatus(1);
                 userService.save(user);
             }
              //把用户id保存进session
             session.setAttribute("user",user.getId());
               //登录成功的话要删除redis中的验证码
             redisTemplate.delete(phone);
              return R.success(user);
         }

              return R.error("登录失败");
    }


}
